./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash deeb3c1689cccb41b32be052288e2f3a90dc0e8e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:40,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:40,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:40,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:40,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:40,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:40,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:40,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:40,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:40,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:40,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:40,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:40,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:40,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:40,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:40,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:40,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:40,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:40,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:40,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:40,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:40,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:40,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:40,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:40,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:40,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:40,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:40,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:40,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:40,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:40,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:40,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:40,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:40,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:40,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:40,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:40,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:40,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:40,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:40,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:40,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:40,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:54:40,200 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:40,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:40,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:40,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:40,203 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:40,203 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:54:40,203 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:54:40,203 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:54:40,203 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:54:40,203 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:54:40,204 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:54:40,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:40,205 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:40,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:40,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:40,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:40,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:40,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:54:40,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:54:40,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:54:40,206 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:40,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:40,206 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:54:40,207 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:40,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:54:40,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:40,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:40,207 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:54:40,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:40,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:40,208 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:54:40,209 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:54:40,209 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deeb3c1689cccb41b32be052288e2f3a90dc0e8e [2019-11-25 08:54:40,388 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:40,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:40,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:40,401 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:40,402 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:40,402 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-11-25 08:54:40,457 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/data/a54a5c39f/364f176408b3478796756ab04dc8dc4b/FLAG5bc5f4858 [2019-11-25 08:54:40,942 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:40,942 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-11-25 08:54:40,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/data/a54a5c39f/364f176408b3478796756ab04dc8dc4b/FLAG5bc5f4858 [2019-11-25 08:54:41,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/data/a54a5c39f/364f176408b3478796756ab04dc8dc4b [2019-11-25 08:54:41,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:41,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:41,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:41,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:41,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:41,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:41,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d9887f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41, skipping insertion in model container [2019-11-25 08:54:41,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:41,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:41,499 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:41,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:41,881 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:41,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:41,980 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:41,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41 WrapperNode [2019-11-25 08:54:41,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:41,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:41,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:41,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:41,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:42,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:42,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:42,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:42,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... [2019-11-25 08:54:42,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:42,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:42,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:42,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:42,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:54:42,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:54:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:54:42,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:42,805 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:42,805 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-11-25 08:54:42,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:42 BoogieIcfgContainer [2019-11-25 08:54:42,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:42,807 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:54:42,807 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:54:42,809 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:54:42,810 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:42,811 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:54:41" (1/3) ... [2019-11-25 08:54:42,812 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f7dfd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:42, skipping insertion in model container [2019-11-25 08:54:42,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:42,812 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:41" (2/3) ... [2019-11-25 08:54:42,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f7dfd04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:54:42, skipping insertion in model container [2019-11-25 08:54:42,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:54:42,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:42" (3/3) ... [2019-11-25 08:54:42,815 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2019-11-25 08:54:42,861 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:54:42,862 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:54:42,862 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:54:42,862 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:42,862 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:42,862 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:54:42,862 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:42,862 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:54:42,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-25 08:54:42,899 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-25 08:54:42,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:42,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:42,906 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,907 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,907 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:54:42,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states. [2019-11-25 08:54:42,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2019-11-25 08:54:42,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:42,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:42,913 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,913 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:42,919 INFO L794 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 5#L-1true havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 62#L890true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 69#L898true main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 72#L854true assume 0 != main_~tmp~6; 56#L828true havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 27#L918-1true [2019-11-25 08:54:42,919 INFO L796 eck$LassoCheckResult]: Loop: 27#L918-1true assume !false; 54#L616true assume test_~splverifierCounter~0 < 4; 77#L617true test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 14#L625true assume !(0 != test_~tmp~5); 18#L625-1true test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 80#L635true assume !(0 != test_~tmp___0~1); 84#L635-1true test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 61#L645true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 71#L653-1true assume !(0 != ~pumpRunning~0); 78#L434true assume !(0 != ~systemActive~0); 64#L441true havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 43#L718true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 59#L912true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 27#L918-1true [2019-11-25 08:54:42,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:42,925 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-25 08:54:42,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:42,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507169365] [2019-11-25 08:54:42,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:43,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:43,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1671986817, now seen corresponding path program 1 times [2019-11-25 08:54:43,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:43,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675073997] [2019-11-25 08:54:43,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:43,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:43,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675073997] [2019-11-25 08:54:43,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:43,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:54:43,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234843310] [2019-11-25 08:54:43,297 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:54:43,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:43,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:54:43,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:43,313 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 3 states. [2019-11-25 08:54:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:43,374 INFO L93 Difference]: Finished difference Result 160 states and 228 transitions. [2019-11-25 08:54:43,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:54:43,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 228 transitions. [2019-11-25 08:54:43,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 102 [2019-11-25 08:54:43,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 146 states and 213 transitions. [2019-11-25 08:54:43,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2019-11-25 08:54:43,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2019-11-25 08:54:43,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 213 transitions. [2019-11-25 08:54:43,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:43,395 INFO L688 BuchiCegarLoop]: Abstraction has 146 states and 213 transitions. [2019-11-25 08:54:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 213 transitions. [2019-11-25 08:54:43,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2019-11-25 08:54:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-25 08:54:43,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2019-11-25 08:54:43,428 INFO L711 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-11-25 08:54:43,428 INFO L591 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-11-25 08:54:43,428 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:54:43,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2019-11-25 08:54:43,431 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-11-25 08:54:43,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:43,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:43,432 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:54:43,433 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:43,433 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 256#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 257#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 327#L898 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 329#L854 assume 0 != main_~tmp~6; 318#L828 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 285#L918-1 [2019-11-25 08:54:43,433 INFO L796 eck$LassoCheckResult]: Loop: 285#L918-1 assume !false; 286#L616 assume test_~splverifierCounter~0 < 4; 315#L617 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 273#L625 assume !(0 != test_~tmp~5); 275#L625-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 277#L635 assume !(0 != test_~tmp___0~1); 255#L635-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 324#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 325#L653-1 assume !(0 != ~pumpRunning~0); 290#L434 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 316#L466 assume !(0 == ~pumpRunning~0); 317#L441 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 301#L718 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 302#L912 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 285#L918-1 [2019-11-25 08:54:43,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:43,434 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-25 08:54:43,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:43,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214063978] [2019-11-25 08:54:43,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,582 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:43,585 INFO L82 PathProgramCache]: Analyzing trace with hash -323593906, now seen corresponding path program 1 times [2019-11-25 08:54:43,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:43,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681786703] [2019-11-25 08:54:43,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:43,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681786703] [2019-11-25 08:54:43,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:43,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:54:43,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139150243] [2019-11-25 08:54:43,600 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:54:43,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:43,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:54:43,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:54:43,601 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-11-25 08:54:43,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:43,678 INFO L93 Difference]: Finished difference Result 239 states and 334 transitions. [2019-11-25 08:54:43,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:54:43,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 334 transitions. [2019-11-25 08:54:43,683 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2019-11-25 08:54:43,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 239 states and 334 transitions. [2019-11-25 08:54:43,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 239 [2019-11-25 08:54:43,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 239 [2019-11-25 08:54:43,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 239 states and 334 transitions. [2019-11-25 08:54:43,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:43,690 INFO L688 BuchiCegarLoop]: Abstraction has 239 states and 334 transitions. [2019-11-25 08:54:43,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states and 334 transitions. [2019-11-25 08:54:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2019-11-25 08:54:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-11-25 08:54:43,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 334 transitions. [2019-11-25 08:54:43,719 INFO L711 BuchiCegarLoop]: Abstraction has 239 states and 334 transitions. [2019-11-25 08:54:43,720 INFO L591 BuchiCegarLoop]: Abstraction has 239 states and 334 transitions. [2019-11-25 08:54:43,727 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:54:43,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 239 states and 334 transitions. [2019-11-25 08:54:43,730 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 171 [2019-11-25 08:54:43,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:43,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:43,731 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:54:43,731 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:43,732 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 648#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 649#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 720#L898 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 727#L854 assume 0 != main_~tmp~6; 711#L828 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 712#L918-1 [2019-11-25 08:54:43,732 INFO L796 eck$LassoCheckResult]: Loop: 712#L918-1 assume !false; 823#L616 assume test_~splverifierCounter~0 < 4; 732#L617 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 733#L625 assume !(0 != test_~tmp~5); 871#L625-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 868#L635 assume !(0 != test_~tmp___0~1); 866#L635-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 773#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 726#L653-1 assume !(0 != ~pumpRunning~0); 734#L434 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 710#L466 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 698#L758 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 699#L763 isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; 693#L568 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 694#L568-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 700#L574 processEnvironment_#t~ret35 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; 849#L470 assume !(0 != processEnvironment_~tmp~3); 830#L441 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 829#L718 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 825#L912 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 712#L918-1 [2019-11-25 08:54:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:43,732 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-25 08:54:43,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:43,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093127944] [2019-11-25 08:54:43,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,803 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:43,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:43,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1551490662, now seen corresponding path program 1 times [2019-11-25 08:54:43,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:43,804 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738556200] [2019-11-25 08:54:43,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:43,815 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:43,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:43,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1536778688, now seen corresponding path program 1 times [2019-11-25 08:54:43,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:43,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697391817] [2019-11-25 08:54:43,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:43,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:43,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697391817] [2019-11-25 08:54:43,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:43,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:54:43,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769175123] [2019-11-25 08:54:44,063 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-25 08:54:44,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:44,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:44,145 INFO L87 Difference]: Start difference. First operand 239 states and 334 transitions. cyclomatic complexity: 98 Second operand 5 states. [2019-11-25 08:54:44,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:44,273 INFO L93 Difference]: Finished difference Result 788 states and 1109 transitions. [2019-11-25 08:54:44,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:54:44,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 788 states and 1109 transitions. [2019-11-25 08:54:44,283 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 600 [2019-11-25 08:54:44,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 788 states to 788 states and 1109 transitions. [2019-11-25 08:54:44,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 788 [2019-11-25 08:54:44,292 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 788 [2019-11-25 08:54:44,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 788 states and 1109 transitions. [2019-11-25 08:54:44,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:54:44,296 INFO L688 BuchiCegarLoop]: Abstraction has 788 states and 1109 transitions. [2019-11-25 08:54:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states and 1109 transitions. [2019-11-25 08:54:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 472. [2019-11-25 08:54:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-11-25 08:54:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 646 transitions. [2019-11-25 08:54:44,325 INFO L711 BuchiCegarLoop]: Abstraction has 472 states and 646 transitions. [2019-11-25 08:54:44,325 INFO L591 BuchiCegarLoop]: Abstraction has 472 states and 646 transitions. [2019-11-25 08:54:44,325 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:54:44,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 472 states and 646 transitions. [2019-11-25 08:54:44,329 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 342 [2019-11-25 08:54:44,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:54:44,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:54:44,330 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-25 08:54:44,330 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:44,330 INFO L794 eck$LassoCheckResult]: Stem: 1730#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(110, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(102, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 3 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string44.base, #t~string44.offset, 1);call write~init~int(80, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(117, #t~string44.base, 2 + #t~string44.offset, 1);call write~init~int(109, #t~string44.base, 3 + #t~string44.offset, 1);call write~init~int(112, #t~string44.base, 4 + #t~string44.offset, 1);call write~init~int(58, #t~string44.base, 5 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 6 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(110, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 2 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(102, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 3 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string50.base, #t~string50.offset, 1);call write~init~int(32, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string52.base, #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 1 + #t~string52.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(77, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(101, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(116, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(104, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string63.base, #t~string63.offset, 1);call write~init~int(82, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(73, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(84, #t~string63.base, 3 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 4 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(75, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1690#L-1 havoc main_#res;havoc main_#t~ret68, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 1691#L890 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 1773#L898 main_#t~ret68 := valid_product_#res;main_~tmp~6 := main_#t~ret68;havoc main_#t~ret68; 1782#L854 assume 0 != main_~tmp~6; 1763#L828 havoc test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_#t~nondet57, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1723#L918-1 [2019-11-25 08:54:44,331 INFO L796 eck$LassoCheckResult]: Loop: 1723#L918-1 assume !false; 1725#L616 assume test_~splverifierCounter~0 < 4; 1761#L617 test_~tmp~5 := test_#t~nondet54;havoc test_#t~nondet54; 1708#L625 assume !(0 != test_~tmp~5); 1710#L625-1 test_~tmp___0~1 := test_#t~nondet55;havoc test_#t~nondet55; 1713#L635 assume !(0 != test_~tmp___0~1); 1791#L635-1 test_~tmp___2~0 := test_#t~nondet56;havoc test_#t~nondet56; 2001#L645 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1781#L653-1 assume !(0 != ~pumpRunning~0); 1784#L434 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret35, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1762#L466 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret53, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1752#L758 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1753#L763 isHighWaterLevel_#t~ret53 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret53;havoc isHighWaterLevel_#t~ret53; 1744#L568 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1745#L568-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1695#L574 processEnvironment_#t~ret35 := isHighWaterLevel_#res;processEnvironment_~tmp~3 := processEnvironment_#t~ret35;havoc processEnvironment_#t~ret35; 1696#L470 assume !(0 != processEnvironment_~tmp~3); 1786#L441 havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1740#L718 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 1741#L912 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1715#L750 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 1716#L918 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1723#L918-1 [2019-11-25 08:54:44,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:44,331 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-25 08:54:44,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:44,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829024271] [2019-11-25 08:54:44,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:44,418 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:44,421 INFO L82 PathProgramCache]: Analyzing trace with hash -628868084, now seen corresponding path program 1 times [2019-11-25 08:54:44,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:44,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450398279] [2019-11-25 08:54:44,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:44,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:44,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:44,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:44,438 INFO L82 PathProgramCache]: Analyzing trace with hash 624437042, now seen corresponding path program 1 times [2019-11-25 08:54:44,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:44,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300636209] [2019-11-25 08:54:44,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:44,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:44,722 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-25 08:55:08,671 WARN L192 SmtUtils]: Spent 23.88 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-25 08:55:22,645 WARN L192 SmtUtils]: Spent 13.97 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-25 08:55:22,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:55:22 BoogieIcfgContainer [2019-11-25 08:55:22,745 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:55:22,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:55:22,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:55:22,746 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:55:22,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:42" (3/4) ... [2019-11-25 08:55:22,749 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:55:22,802 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_61bb905a-bb7b-4e41-ba54-923dd59194a7/bin/uautomizer/witness.graphml [2019-11-25 08:55:22,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:55:22,804 INFO L168 Benchmark]: Toolchain (without parser) took 41377.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.8 MB). Free memory was 948.7 MB in the beginning and 988.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 159.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:22,804 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:22,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:22,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:22,805 INFO L168 Benchmark]: Boogie Preprocessor took 38.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:22,806 INFO L168 Benchmark]: RCFGBuilder took 729.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:22,806 INFO L168 Benchmark]: BuchiAutomizer took 39937.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 992.2 MB in the end (delta: 69.4 MB). Peak memory consumption was 240.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:22,807 INFO L168 Benchmark]: Witness Printer took 57.07 ms. Allocated memory is still 1.2 GB. Free memory was 992.2 MB in the beginning and 988.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:22,809 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 553.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 729.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 39937.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 992.2 MB in the end (delta: 69.4 MB). Peak memory consumption was 240.3 MB. Max. memory is 11.5 GB. * Witness Printer took 57.07 ms. Allocated memory is still 1.2 GB. Free memory was 992.2 MB in the beginning and 988.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 472 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 39.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 39.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 318 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 472 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 399 SDtfs, 623 SDslu, 640 SDs, 0 SdLazy, 75 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 615]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6983} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=6983, NULL=6994, NULL=0, NULL=0, NULL=0, NULL=6989, NULL=7001, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@170ab69f=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, retValue_acc=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54ee521c=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1aa2fc13=0, tmp___1=0, NULL=13551, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@df841cf=0, NULL=13546, NULL=13548, NULL=6998, cleanupTimeShifts=4, NULL=13552, NULL=6999, NULL=13553, tmp=0, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=13554, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b3fbd85=0, NULL=0, NULL=0, \result=1, NULL=6995, head=0, pumpRunning=0, retValue_acc=1, \result=0, NULL=13545, NULL=6984, NULL=0, NULL=0, tmp=1, \result=1, NULL=13549, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a0e8f7=0, NULL=6997, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@461d7d65=0, NULL=6990, NULL=6992, tmp=1, retValue_acc=1, tmp___2=62, NULL=7000, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5385aebc=0, NULL=6985, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37b6c6e4=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ef61d67=0, tmp=0, tmp___1=0, head=0, NULL=0, NULL=13547, NULL=13550, NULL=0, NULL=6996, NULL=0, NULL=0, NULL=6993, NULL=0, NULL=6991} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int retValue_acc ; [L846] int tmp ; [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 Loop: [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND FALSE !(\read(tmp)) [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND TRUE \read(tmp___2) [L597] systemActive = 1 [L434] COND FALSE !(\read(pumpRunning)) [L441] COND TRUE \read(systemActive) [L463] int tmp ; [L466] COND TRUE ! pumpRunning [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L755] int retValue_acc ; [L758] COND TRUE waterLevel < 2 [L759] retValue_acc = 1 [L760] return (retValue_acc); [L566] tmp = isHighWaterSensorDry() [L568] COND TRUE \read(tmp) [L569] tmp___0 = 0 [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); [L468] tmp = isHighWaterLevel() [L470] COND FALSE !(\read(tmp)) [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); [L916] tmp___0 = getWaterLevel() [L918] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...